1. Attneave, F. (1954). Some informational aspects of visual perception.Psychological Review,61, 183–193.
2. Cook, S. (1983). The classification of problems which have fast parallel algorithms. In G. Goos & J. Hartmanis (Eds.),Lecture Notes in Computer Science, Vol. 158. Berlin: Springer-Verlag.
3. Finke, R. A., &Pinker, S. (1982). Spontaneous imagery scanning in mental extrapolation.Journal of Experimental Psychology: Learning, Memory, & Cognition,8, 142–147.
4. Finke, R. A., &Pinker, S. (1983). Directional scanning of remembered visual patterns.Journal of Experimental Psychology: Learning, Memory, & Cognition,9, 398–410.
5. Gordon, R. B. (1984).Boundary tracing, image scanning, attentional shifts, and apparent motion: An exploration of the possibility of a common shift operator. Unpublished master’s thesis, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.